* Astronomy

The 19 - 43 metre wide asteroid 2014 DP21 will make a close pass (10.7 lunar distances, 0.0274 AU), travelling at 6.38 km/second, to the Earth-Moon system on the 5th March 2014 @ 13:39 UT ±00:03. 

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).